Final answer:
The suggested theatre set for a scene from Singin' in the Rain involves a backdrop of a Hollywood street, a rain system, and props like a lamppost and an umbrella.
Step-by-step explanation:
If I were to design a theatre set for a scene from the film Singin' in the Rain, I would choose the iconic scene where the main character, Don Lockwood, performs the titular song in a downpour of rain. To create this scene, I would use a backdrop depicting a classic Hollywood street with old-fashioned lampposts and buildings. I would also incorporate a practical rain system that can spray water onto the stage, simulating rain. In terms of props, I would include a lamppost for Don Lockwood to dance around and an umbrella for him to twirl. These props would be strategically placed on the stage to create dynamic movement and visually enhance the performance.